Play Wild Castle TD Grow Empire Online Game. One of many Strategy Games to play online on your web browser for free at KBH Games. Tagged as Arcade Games, Strategy Games, and Tower Defense Games. Wild Castle TD: Grow Empire Game App is also available for your Android device on the GooglePlay Store. Upvoted by 31 players. Other games you might like are Empire Island and GROW Planet. No download or installation needed to play this free game. Hope this game brings a little joy into your daily life.